Planograph co



S. H. GRAF.

PUMP.

APPLICATION FILED MAY 9, I919.

Patented Sept. 30, 1919.

J AN V EN TOR.

v BY A TTORNE Y.

THE COLUMBIA PLANOGRAPH co.. WASHINGTON. n.

UNITED STATES PATENT onnron.

SYDNEY H. GRAF, OF HUMBLE, TEXAS, ASSIGNOR TO- B. P. OBRIEN, OF LUFKIN', TEXAS,

AND w. n. JONES, or BEAUMONT, TEXAS.

PUMP.

Application filed May 19, 1919.

To all whom it may concern:

Be it known that I SYDNEY H. GRAF, a citizen of the United States, residing at Humble, in the county of Harris and State of Texas, have invented certain new and useful Improvements in Pumps, of which the following is a specification.

This invention relates to new and useful improvements in a pump valve.

One object of the invention is to provide a valve of the character described which is specially designed to be used in a pump for pumping wells, and particularly for pumping oil from oil wells.

Another object of the invention is to provide a pump having a valve of the character described which will not be affected by the fluid or gas pressure which is in the bore. In pumping oil from oil wells, by means of pumps now commonly employed, the fluid or gas pressure which is in the well often affects the pump valves, the pressure being sufficient to hold said valves open to such an extent that the pump will not work. It is the object of this invention to provide a ptunp, the valve of which is so formed as to be unaffected by said pressure.

With the above and other objects in view, the invention has particular relation to certain novel features of construction, opera tion and arrangement of parts, an example of which is given in this specification and illustrated in the accompanying drawings, wherein:

The figure is a vertical sectional view of the pump.

Referring now more particularly to the drawings, the numeral 1 refers to the standing barrel of the pump, which is attached to the lower end of the tubing 2, by means of the coupling 8. To the lower end of the standing barrel, the valve cage 4, is attached, having the tapering seat 5, therein from which the fluid inlet ports 6 radiate, and within this cage, there is the tapering valve 7 formed to conform to the contour of the seat, and having the central vertical passageway 8 extending therethrough. Within the standing barrel, there is the working barrel 9 of conventional construction.

Upon up stroke, of the working barrel, or plunger 9, a vacuum is created within the Specification of Letters Patent.

Patented Sept. 30, 1919.

Serial No. 298,081.

standing barrel, which will lift the valve 7 and the fluid is drawn through the ports 6, and passes up through the central passageway 8 of the valve into the standing barrel and upon the down stroke of the working barrel, said valve 7 is seated.

The valve 7 is so formed that it can not be lifted by gas or fluid pressure within the bore which may be exerted through the port 6 against it, so that this outside fluid pressure will not hold said valve 7 lifted or interfere with the working of the pump.

WVhat I claim is:

1. In a pump of the character described, a standing barrel, a valve cage secured to the lower end thereof and formed with a tapering seat, said cage being provided with fluid ports which radiate from said seat, a tapering valve formed to conform to the contour of said seat and provided with a central fluid passageway.

2. In a pump, a standing barrel, a valve cage detachably secured to the lower end thereof and formed with a tapering seat, said cage being provided with fluid ports which radiate from said seat, a tapering valve formed to conform to the contour of and normally resting in said seat and 010s ing said fluidports, said valve being provided with a central fluid passageway, and adapted to be lifted by the suction of the pump so as to clear said fluid ports and admit fluid through said ports and passageway into said barrel.

3. In a pump of the character described, a standing barrel whose lower end is formed with a tapering valve seat having radiating fluid ports, of a valve having a fluid passageway therethrough and located within said seat and conforming to the contour thereof, said valve when seated, closing said ports, and when lifted clearing said ports, so as to admit fluid through said ports and passageway into said barrel.

In testimony whereof, I have signed my name to this specification in the presence of two subscribing witnesses.

SYDNEY H. GRAF.

Witnesses J. W. SAUDLIN, J. DIXIE SMITH.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Iatents, Washington, I). G. 

